fusengine/commit-detection

Commit Type Detection Skill

Expert knowledge for detecting the optimal conventional commit type.

Detection Algorithm

Step 1: Gather Data

# Get modified files
git diff --name-only
git diff --staged --name-only

# Get change statistics
git diff --stat
git diff --staged --stat

# Check for keywords in diff
git diff | grep -i "fix\|bug\|error" | head -5

Step 2: Categorize Files

| Category | File Patterns | |----------|---------------| | docs | *.md, *.txt, *.rst, README*, CHANGELOG* | | test | *.test.*, *.spec.*, __tests__/*, test/* | | config | *.json, *.yml, *.yaml, *.toml, .*rc | | ci | .github/*, .gitlab-ci.yml, Jenkinsfile | | build | package.json, Makefile, webpack.*, vite.* | | style | Only whitespace, formatting changes | | src | *.ts, *.js, *.py, *.go, *.rs, etc. |

Step 3: Apply Rules

IF only docs files changed:
  → docs

IF only test files changed:
  → test

IF only config/build files changed:
  → chore

IF only CI files changed:
  → ci

IF diff contains "fix", "bug", "error", "issue", "resolve":
  → fix

IF new files added with business logic:
  → feat

IF files renamed/moved without logic change:
  → refactor

IF performance keywords ("optimize", "perf", "speed", "cache"):
  → perf

IF formatting only (whitespace, semicolons):
  → style

DEFAULT:
  → Use /commit-pro:commit for smart analysis

Step 4: Determine Scope

Extract scope from primary directory:

src/components/Button.tsx → ui or button
src/api/auth.ts → auth
lib/utils/date.ts → utils
server/routes/user.ts → user

Quick Reference

| Type | When | Version Bump | |------|------|-------------| | feat | New functionality | PATCH | | fix | Bug correction | PATCH | | docs | Documentation only | PATCH | | style | Formatting only | PATCH | | refactor | Code restructure | PATCH | | perf | Performance | PATCH | | test | Tests only | PATCH | | build | Build/deps | PATCH | | ci | CI/CD config | PATCH | | chore | Maintenance | PATCH |

MINOR/MAJOR bumps are manual user decisions, never automatic.

Post-Commit Actions

See the post-commit skill for universal CHANGELOG, version bump, and tag logic (works for all repos).

Examples

Example 1: Only README changed

Files: README.md
→ /commit-pro:docs

Example 2: New component + test

Files: src/Button.tsx, src/Button.test.tsx
→ /commit-pro:feat (primary is new feature)

Example 3: Fix in existing file

Files: src/api/auth.ts
Diff contains: "fix login bug"
→ /commit-pro:fix